Iphone 4s turns off when unplugged?

My iPhone 4s suddenly decided to malfunction after a year and two months. When I unplug it from the charger, where it said it was at 93%, it immediately turns off. When I try to power it on it tells me to connect it to the charger like it has no battery.

Maybe your iPhone 4s have problem with it's battery. Try to bring it to the nearest apple store to determine the real problem of your phone.

Or maybe just buy a new phone, iPhone 5s is already released.
I tried my luck here on iPhone 5s Giveaway Promo, hoping to get the Gold one.
http://iphone5s-giveaways.blogspot.com/

  • Why does my iPhone shut off when it is unplugged? Well for a while now my iPhone has been shutting off when I unplug it. Sometimes the battery would just stay at a same percent for a while and I will take it off the charger and plug it back in, then my phone would shut off and come back on. That would keep the battery going up. Also lately, my phone has been receiving text messages really late and unless I turn my phone off I would get the messages late. Anyone has any suggestions?
  • What would happen if I unplugged my iPhone while jailbreakkng it? I'm just curious. I never would do that on purpose but what would happen if the power went off and the computer shuts off? Would the iPhone get bricked or will it still be usable?
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  • My Iphone 4 shows a full charge while plugged into charged but empty when unplugged? I have an Iphone 4 that won't charge. However, when I plug it into the wall charger, computer or car charger it shows that it is 100% charged. Once I remove it from the charger (any of them) it shows the battery is empty. Has anyone had this problem and can you help with a solution? I have tried a full restore, hard reboot, etc. Nothing fixes this problem.